ELP1#氯乙烯气柜长期未按规定检修卡顿倾斜泄漏，操作员未及时发现仍调大压缩机回流→氯乙烯冲破环形水封泄漏扩散至厂外遇火源爆燃
氯乙烯气柜长期未检修卡顿倾斜；操作人员未发现异常仍按常规调大回流；风险管控/应急能力差；瞒报事故误导调查
The recorded code ELP is an ISO 14224:2016 functional failure code (describes what the equipment failed to do). The damage mechanism (how it failed) is shown in the Mapping block above. The two are distinct dimensions in ISO 14224.
EVAP-C1-FM1焊缝应力腐蚀/裂纹 EVAP-C1-FM2管内结垢/结疤传热恶化 EVAP-C2-FM1管束点蚀穿孔 EVAP-C2-FM2管板泄漏 EVAP-C2-FM3分布不均→干壁过热 EVAP-C3-FM1分布孔堵塞 EVAP-C3-FM2除沫器堵塞→蒸汽带液 EVAP-C4-FM1不凝气积聚→传热下降 EVAP-C5-FM1湿蒸汽冲蚀/腐蚀 COMP-C1-FM1结垢转子不平衡 COMP-C1-FM2Blade Fatigue Crack COMP-C1-FM3电机过载/烧毁 COMP-C2-FM1Mechanical Seal Leak COMP-C3-FM1密封端面磨损 COMP-C3-FM2轴承磨损/烧瓦 COMP-C4-FM1可调导叶卡涩/调节失灵 COMP-C5-FM1Shell Corrosion COMP-C6-FM1气封失效内漏 COMP-C6-FM2压缩机喘振 COMP-C7-FM1Cavitation FPH-C1-FM1Impeller Wear FPH-C1-FM3电机过载 FPH-C1-FM4Fouling / Scaling FPH-C2-FM1管束腐蚀 FPH-C2-FM2磨蚀/磨损 FPH-C3-FM1固体堵塞 FPH-C3-FM2Cavitation FPH-C4-FM1测量漂移/导压管堵塞 ICS-C1-FM1传感器失效 ICS-C2-FM1控制逻辑失效/死机 ICS-C3-FM1通信中断 ICS-C3-FM2调节阀卡涩/失效 ICS-C4-FM1变频器故障→压缩机跳闸 ICS-C5-FM1联锁拒动 ICS-C6-FM1联锁误动→非计划停机 ICS-C6-FM2转子型线磨损 rotor_profile_wear转子接触擦伤 rotor_contact_score_mark滑动轴承缺陷 bearing_journal_defect止推轴承失效 bearing_thrust_failure油系统污染 oil_system_contamination油泵失效 oil_pump_failure轴封泄漏（工艺气） shaft_seal_leak_gas中间冷却器结垢 intercooler_fouling吸气过滤器堵塞 suction_filter_clog排气温度过高 discharge_temp_high联轴器不对中 coupling_misalignment振动高（不平衡） vibration_high_unbalance气量调节失灵 capacity_control_malfunction内部增速齿轮失效 internal_gear_fail轴承失效（磨损/剥落） MECH-BEARING-WEAR密封失效 MECH-SEAL-FAILURE结垢/堵塞 MECH-FOULING压缩机喘振 MECH-SURGE润滑失效 MECH-LUBRICATION-FAILURE不对中 MECH-MISALIGNMENT转子不平衡 MECH-UNBALANCE叶轮/叶片磨损 MECH-IMPELLER-WEAR冲蚀/冲刷腐蚀 MECH-EROSION机械疲劳 MECH-MECH-FATIGUE均匀/局部减薄（通用减薄） MECH-THINNING联轴器失效 MECH-COUPLING-FAILURE振动诱发疲劳 MECH-VIB-FATIGUE大气腐蚀 MECH-ATMOS电偶腐蚀 MECH-GALVANIC